This species is the national tree of Sri Lanka. The geography of Sri Lanka is quite similar to the South western regions of India. In fact, part of the Western Ghat seems to extend to Sri Lanka. Mesua ferrea is used in Indian cooking, as a medicine, for its fragrance and in the industry for its wood. Some people have noted the psychedelic effects of the fragrance of Nag Champa. The incense sticks made from the flowers of this plant are popular worldwide for their intense fragrance.

Also called Angiospermae. The ancestors of flowering plants diverged from gymnosperms around 245–202 million years ago, and the first flowering plants known to exist are from 140 million years ago. They diversified enormously during the Lower Cretaceous and became widespread around 100 million years ago, but replaced conifers as the dominant trees only around 60-100 million years ago.

These are seed plants like Gymnosperms, but can be differentiated by the presence of flowers, seeds containing endosperm and seeds that produce a fruit. Angiosperms are the most diverse and highly evolutionarily successful group of land plants.

Magnoliopsida is the scientific name for dicots. This class contains about ~1,99,350 species of Angiosperms. Eudicots are a subset of Dicots. Based on chloroplast DNA sequences, the divergence date between monocots and dicots is estimated to be ~200 million years, with a 40 million years uncertainty.

Dicots are diverse in habit, with half of all the species being more or less woody-stemmed - a reflection of the usual presence of a vascular cambium in the class. Annuals, biennials, vines, epiphytes, aquatics, parasites, and saprotrophs are also well represented in dicots. Vascular bundles of the stem are usually borne in a ring that encloses the pith. Vessel elements present except in some putatively primitive woody or aquatic families. Most dicots have a primary root system derived from the radicle, although some have an adventitious root system commonly seen in the class of monocots. Cotyledons are usually 2, seldom 1, 3, or 4. Leaves are mostly net-veined.

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ReferencesSee complete references in the References section at the end

Pubmed Word cloud

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If the number of nucleotide sequences is less than 100, very little genomic work has been done on this species. A respectable number of nucleotide sequences is above 10000.

Most of the nucleotide sequences may come from three sources:

Studies on single genes, where people try to sequence genes such as some specific dehydrogenases important,say, for tannin production

Sequences of Ribosomal Internal Transcribed Spacer, whose sequence is used for generating molecular phylogenetic trees to establish species relationships

Expressed Sequence Tags (ESTs) which can tell about which genes are present and expressed in the species at a particular time in the given tissue

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ReferencesSee complete references in the References section at the end

Details of modern scientific knowledge available for this species

Are herbarium specimen available for this species?

Institutes having herbarium samples

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